There may be... but I'm not sure. There was a company here in Florida that was importing quads and trying to push to get them street legal. They were called GG Quads and they looked pretty impressive. I signed up for their newsletter but haven't received one in quite a while. I'm not sure it the project is still around or not but they were pretty cool.

Here is a link to a test ride in 2006....

http://www.motorcycle-usa.com/17/799...uick-Ride.aspx